Tagged Questions

An application that allows administrators to configure the packet processing tables provided by the Linux kernel firewall. Use this tag only for questions on programming with iptables. Questions about configuring iptables should be asked on Server Fault (http://serverfault.com/tour).

This seems to me to be a basic question, but google and SO fail to give me an answer. As the title says, is iptables thread safe? If I have multiple processes making calls to iptables, should I create ...

I'm looking for a fast stateful firewall in Linux that may process lots of packets and send some of them to external programs.
Is it possible to make netfilter (iptables, nftables) working with Intel ...

Goodday,
I have a centos 7 machine that is going to be a webserver and a teamspeak server at the same time. I have configured the iptables correctly for my webserver: Nginx and Mariadb are available ...

Here is what I am trying to achieve. I have an inline linux box running Suricata capable of dropping packets. This works with the standard method of placing all traffic onto NFQUEUE 0 and then setting ...

I'm trying to build an inline / transparent bridge in Linux, and filter layer 2 frames in user space. (I would like to inspect the entire frame, and decide if to drop it or not, from layer 2 to 3 and ...

I want to crawl webpages through browser and store network traffic per URL (not only HTTP but also udp, rtmp etc.) I came across this solution to use linux network namespace for per process routing. ...

I have a setup with a "main" server and then a set of "slaves" that do the hard work. All users connect to the "main" that then redirects them to a "slave".
Ideally I want the system to work in such ...